[TenTec] Proper TenTec 960 power Supply Schematic

[Radio AI2Q]

Make that a VOM, not a COM. Sorry for the typo.

== Vy 73, /AI2Q/, Alex


On 6/4/2021 8:59 AM, Radio AI2Q wrote:
> Hi DJ,
>
> I suggest you use your ohmmeter (preferably a COM)  to check the 
> junctions of the bipolar transistors in the regulator circuit. Check 
> devices from base to collector and base to emitter. Your readings 
> should be low forward and high in reverse. You'll need to use a meter 
> that provides a volt or so on its test leads in the ohmmeter position. 
> Check from emitter to collectors, too. That should reveal any shorts. 
> If likely good your readings should be high both ways. Do the same 
> tests on the diodes, even the Zener diodes.
>
> Needless to say, be sure the supply is off and the filter caps are 
> discharged before making these tests.
>
> Vy 73, /AI2Q/, Alex
>
>
> On 6/4/2021 12:18 AM, DJ wrote:
>> Hi All
>>
>> Could some one let me know if there is a proper schematic for my 
>> TenTec 960 power supply;y ,none I have are proper in terms of parts.
>>
>> Problem is that  I turn on supply , I can Adjust to proper voltage, 
>> but when I put any load on the supply like 1 to 18 amps amp it, the 
>> voltage goes to zero volts.
>>
>> Take load of it is ok with proper voltage , have two supplies with 
>> same problem.
>>
>> Sure could use some help on this.
>>
>> Checked all the parts ,have replaced parts , 723 on all, my brain is 
>> gone .
>>
>> Thank you for the read
>>
>> DJ. K6RCL. Goleta, Calif.
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>
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